Amalgamating-machine.



w. B. TUCKER.

AMALGAMATING MACHINE.

APPLICATION FILED NOV.1,I9I8.

1 ,300,054 Patented Apr. 8, 1919.

attenua,

UNITED, f

Be lit. kil-QW that l, WILLIAM ay y itiZ eI 1--of-the United States, residinglgat,

Healdsburg, in the connty =..;of .Sonoma and State-of Californi a l have ,invented .newg Iand useful Improvements in Amalgaanating-Machines, of which the followingjsa specification.

This invention j is improved amalgamating machine for recovering gold, and other` precious metal?fromV crea the; object of; the, invention being to pro-vide an improved Ilias;

sectional view of an amalgamating machine constructed and arranged in accordance with my invention. i

Fig. 2 is a transverse Ysectional view of the same. l

Fig. 3 is an enlarged fragmentary section on the line 3-3 of Fig. 2.

My improved amalgainating machine coniprises a hollow horizontally arranged revo'- luble cylinder 1 which maybe made ofy any suitable material and the heads 2 of which are provided with central openings.v 'Iuings thereof and are each-open at theirinbular axle spindles 3 are secured in the centers of the heads and pass through the openner and outer vends and are lprovidediat their outer ends with inwardly turned annular flanges 4. The tubular aXle spindles have outwardly extending flanges 5 at their inner ends and the said flanges are connected together by rods 6 which are arrangedV 1on1- gitudinally of the cylinder and serve to brace and strengthen the same.. The axle" spindles of the cylinder vare mounted in bearings in pedestals V7. One" of the axle spindles. is pro-vided with a belt pulley 8 to enable the cylinder to be revolved by power from any suitable engine. l

In opposite sides of the cylinder are ob,-

long longitudinal openings and doors"9 to J 'j mALennATING- MAQHINE- @les "Said pgs manchas pavage I' witlr j; may; be

table, clamps, 1o wherebyptne-juors moved when desired. ,At points opposite `te ibe relrlevcdfwhenthisiszrequrdandlthe l ffastenedy in place, thei said clamps yp'ermitting the doors to be readilyref i the.; said openings the heatlslof thev cylinder are` liwrtivildel'h in theirV opposingfends 'with L. grooves/511' which are, arranged, 'tausch-*sieur andr whiehreceivfc amalganiatingplatsIQ Y' The doors4 enable the amalgamatin-g. platesi l gainalgamating plates are' secured to l'the doors b-yboltrods 13. The boltrods arr-'canl ranged .transversely of the amalgamating "platesfandare under' thesanie when the amal'ganiating plates are in the lower side of the revolving cylinder. of the yboltrods .are secured to the stil'ening strips 14 which are riveted to the' amalgamating machine is as follows:

Ground pulp of ores containing precious metalsis placed in the cylinder and air and water is admitted to thecylinder through' the .hollow axlespindlesand the cylinder is slowlyrevoluble, preferably atthe rate of The inner: ends matingplates, the outer ends vof the wbolt rods'passinfg'g' through openings in the doors 9 and being'provided with nuts 15;.

The operation of my improved amalga-A about eightfrevolutions per minute. Hence,`

the pulp isthoroughly nagitated and all Vparticles thereof; are brought in 'contact with air and water and someof therpulpl: is carried up byone ofthe -amalgamating vplates and caused 'to p passinwardly thereover,` during f each halfrotationof they cylinder. Theair vand, IWater-admiXed 4"vviththe pulp set up.

chemical action therein and together with the movement :ofthe particles serve to 'sepfv arate 'the metals from thegangue, leaving` the metalsvr free. to be taken up by theamal-- i garnittingiv plates. As each plate moves@ up#4 ywardly in on'ejside of the cylinder the pulp in passing inwardly thereover'drops therefrom and sucks air in through the openings formed by the tubular axle spindles vso that the air is constantly renewed and the disintegrating 'action of the chemicals contained in the minerals is alsoemployed, suitable quanti-V ties, such, for instance, as soda, lime, cyanid of potassium' and the nitrates. i' In -pra'ctice,

the cylinder is never filled more than about none-third full. Usually,the treatmentof a charge infthe cylinder requires aboutone hours time to leifect ajrecovery ofall the jp1`eciousmetals in the ore.)k `The Yinwardly turned anges 4 preventthe pulp or Water from running' out of the niachine if any should findv its Way back into the tubular spindles.

While I have herein shown Vand described .a preferred embodiment of my invention, I would have it understood that changes may be made in the form, proportion and `conmounted for rotation and having" airand Waterl inletsA and also vprovided With openings inthe sides, doors to Vclose said openf described,' comprising a hollovsT cylinderV ings, and amalgamating plates attached to the doors and arranged in the cylinder when the doors are in place and removable from the cylinder with the doors.

2. An amalgamating machine of the class' described, comprising a hollow cylinder mounted Vfor rotation and having air and they doors are in place and removable from lthe cylinder With the doors, the heads of the rcylinder being provided With grooves and the. ends of the amalgamating plates being slidably fitted in said grooves,

In testimony Whereof'I aiiix my signature.

' WILLIAM B. TUCKER.

' Vtopics of this patent may be obtained for've cents each, by addressing thecommissioner of Patents,

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